The couple, who were planning a spring wedding, became engaged in April, when Cutler proposed in Mexico. Cavallari had planned to move to Chicago during the upcoming football season.

A rep for Cavallari, who starred in "Laguna Beach" and "The Hills," had no comment.

Cutler led the Bears to the NFC Championship Game last season, his second with the team after three seasons in Denver. He received criticism from fans and NFL players alike when he left the NFC title game with an injury in the second half and didn't return.